A high-speed photographic film record of a Taylor impact experiment was analysed to determine the strain, strain rate and stress. The stress was calculated on the basis of an interpretive analysis by Taylor involving the motion of a plastic wave in the material. The data on drawn OFE copper produced stresses from 300 to 400 MPa, for strains between 0 and 45 per cent. The strain rate approximation produced a peak value of 11 000 s À1 . The strain rate data showed a wide range of values in the plastically deforming region.
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